Particle-containing fibrous web

A porous sheet article comprising a self-supporting nonwoven web of polymeric fibers and at least 80 weight percent sorbent particles enmeshed in the web, the fibers having sufficiently greater elasticity or sufficiently greater crystallization shrinkage than similar caliper polypropylene fibers and...

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Bibliographic Details
Main Author BREY LARRY A.,VINER ANDREW S.,JONES MARVIN E.,TREND JOHN E.,SENKUS RAYMOND,SENKUS MARY E.,INSLEY THOMAS I
Format Patent
LanguageEnglish
Published 17.10.2007
Subjects
BRAIDING
COTTON-WOOL
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
FIRE-FIGHTING
HUMAN NECESSITIES
KNITTING
LACE-MAKING
LIFE-SAVING
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
NON-WOVEN FABRICS
TEXTILES
TRIMMINGS
WADDING
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Summary:A porous sheet article comprising a self-supporting nonwoven web of polymeric fibers and at least 80 weight percent sorbent particles enmeshed in the web, the fibers having sufficiently greater elasticity or sufficiently greater crystallization shrinkage than similar caliper polypropylene fibers and the sorbent particles being sufficiently evenly distributed in the web so that the web has an Adsorption Factor A of at least 1.6x104/mm water. The articles have low pressure drop and can provide filter elements having long service life and an Adsorption Factor approaching and in some instances exceeding that of a packed carbon bed.
Bibliography:Application Number: CN200580038135